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<h1 class="topictitle1">Managing Huawei Cloud Stack GaussDB Copies</h1>
<div><p>This section describes operations on copy data.</p>
<p>Choose <span class="uicontrol"><b><span id="hcs_gaussdb_00055__en-us_topic_0000001839142377_text1879110428547"><strong>Explore</strong></span> &gt; <span id="hcs_gaussdb_00055__en-us_topic_0000001839142377_text13791144225411"><strong>Copy Data</strong></span> &gt; <span id="hcs_gaussdb_00055__en-us_topic_0000001839142377_text88961121031"><strong>Cloud Platforms</strong></span> &gt; <span id="hcs_gaussdb_00055__en-us_topic_0000001839142377_text13803615132619"><strong>Huawei Cloud Stack GaussDB</strong></span></b></span> to go to the Huawei Cloud Stack GaussDB copy page.</p>
<ul><li>Click <span class="uicontrol" id="hcs_gaussdb_00055__en-us_topic_0000001839143185_uicontrol2899165220510"><b>Resources</b></span> to perform operations by resource. Operations on this page are performed on replication copies of the current resource. Perform the following operations in the cluster where the replication copies reside. <p id="hcs_gaussdb_00055__en-us_topic_0000001839143185_p1449155317445"><a href="#hcs_gaussdb_00055__en-us_topic_0000001839143185_table108701649347">Table 1</a> describes the related operations.</p>

<div class="tablenoborder"><a name="hcs_gaussdb_00055__en-us_topic_0000001839143185_table108701649347"></a><a name="en-us_topic_0000001839143185_table108701649347"></a><table cellpadding="4" cellspacing="0" summary="" id="hcs_gaussdb_00055__en-us_topic_0000001839143185_table108701649347" frame="border" border="1" rules="all"><caption><b>Table 1 </b>Operations related to replication copies</caption><colgroup><col style="width:21.32%"><col style="width:47.339999999999996%"><col style="width:31.34%"></colgroup><thead align="left"><tr id="hcs_gaussdb_00055__en-us_topic_0000001839143185_row6870349042"><th align="left" class="cellrowborder" valign="top" width="21.32%" id="mcps1.3.3.1.3.2.4.1.1"><p id="hcs_gaussdb_00055__en-us_topic_0000001839143185_p118701849749">Operation</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="47.339999999999996%" id="mcps1.3.3.1.3.2.4.1.2"><p id="hcs_gaussdb_00055__en-us_topic_0000001839143185_p1387013498414">Description</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="31.34%" id="mcps1.3.3.1.3.2.4.1.3"><p id="hcs_gaussdb_00055__en-us_topic_0000001839143185_p12870184910411">Navigation Path</p>
</th>
</tr>
</thead>
<tbody><tr id="hcs_gaussdb_00055__en-us_topic_0000001839143185_row08701149540"><td class="cellrowborder" valign="top" width="21.32%" headers="mcps1.3.3.1.3.2.4.1.1 "><p id="hcs_gaussdb_00055__en-us_topic_0000001839143185_p48706491742">Creating protection for replication copies</p>
</td>
<td class="cellrowborder" valign="top" width="47.339999999999996%" headers="mcps1.3.3.1.3.2.4.1.2 "><p id="hcs_gaussdb_00055__en-us_topic_0000001839143185_p1087015494412"><strong id="hcs_gaussdb_00055__en-us_topic_0000001839143185_b13871149741">Scenario</strong></p>
<p id="hcs_gaussdb_00055__en-us_topic_0000001839143185_p270074703612">This operation enables you to periodically replicate or archive replication copies.</p>
<p id="hcs_gaussdb_00055__en-us_topic_0000001839143185_p267094031613"><strong id="hcs_gaussdb_00055__en-us_topic_0000001839143185_b4978171851814">Note</strong></p>
<p id="hcs_gaussdb_00055__en-us_topic_0000001839143185_p9670184021612">If no replication copy is generated for the selected resource, you cannot associate an SLA with the resource for protection.</p>
</td>
<td class="cellrowborder" valign="top" width="31.34%" headers="mcps1.3.3.1.3.2.4.1.3 "><p id="hcs_gaussdb_00055__en-us_topic_0000001839143185_p487194915415">In the row of the target resource, choose <strong id="hcs_gaussdb_00055__en-us_topic_0000001839143185_b1411594718412">More</strong> &gt; <span id="hcs_gaussdb_00055__en-us_topic_0000001839143185_text11574114117417"><strong>Protect</strong></span> and associate a replication SLA or an archive SLA to replicate or archive replication copies.</p>
</td>
</tr>
<tr id="hcs_gaussdb_00055__en-us_topic_0000001839143185_row178717491342"><td class="cellrowborder" valign="top" width="21.32%" headers="mcps1.3.3.1.3.2.4.1.1 "><p id="hcs_gaussdb_00055__en-us_topic_0000001839143185_p18713493416">Modifying the SLA associated with replication copies</p>
<p id="hcs_gaussdb_00055__en-us_topic_0000001839143185_p887110492414"></p>
</td>
<td class="cellrowborder" valign="top" width="47.339999999999996%" headers="mcps1.3.3.1.3.2.4.1.2 "><p id="hcs_gaussdb_00055__en-us_topic_0000001839143185_p987134915415"><strong id="hcs_gaussdb_00055__en-us_topic_0000001839143185_b168711049240">Scenario</strong></p>
<p id="hcs_gaussdb_00055__en-us_topic_0000001839143185_p287104910419">This operation enables you to modify the SLA associated with replication copies.</p>
</td>
<td class="cellrowborder" valign="top" width="31.34%" headers="mcps1.3.3.1.3.2.4.1.3 "><p id="hcs_gaussdb_00055__en-us_topic_0000001839143185_p19871144910419">In the row of the target resource, choose <strong id="hcs_gaussdb_00055__en-us_topic_0000001839143185_b91933593419">More</strong> &gt; <span id="hcs_gaussdb_00055__en-us_topic_0000001839143185_text0977160173320"><strong>Modify Protection</strong></span> and associate a new SLA with replication copies.</p>
</td>
</tr>
<tr id="hcs_gaussdb_00055__en-us_topic_0000001839143185_row1987112491546"><td class="cellrowborder" valign="top" width="21.32%" headers="mcps1.3.3.1.3.2.4.1.1 "><p id="hcs_gaussdb_00055__en-us_topic_0000001839143185_p108711049749">Removing protection for replication copies</p>
</td>
<td class="cellrowborder" valign="top" width="47.339999999999996%" headers="mcps1.3.3.1.3.2.4.1.2 "><p id="hcs_gaussdb_00055__en-us_topic_0000001839143185_p88711849945"><strong id="hcs_gaussdb_00055__en-us_topic_0000001839143185_b1787117491414">Scenario</strong></p>
<p id="hcs_gaussdb_00055__en-us_topic_0000001839143185_p53695313586">You can remove the protection plan if the replication copies no longer need to be protected. After removal, the system cannot protect these replication copies.</p>
</td>
<td class="cellrowborder" valign="top" width="31.34%" headers="mcps1.3.3.1.3.2.4.1.3 "><p id="hcs_gaussdb_00055__en-us_topic_0000001839143185_p15871144920417">In the row of the target resource, choose <strong id="hcs_gaussdb_00055__en-us_topic_0000001839143185_b577051413519">More</strong> &gt; <span id="hcs_gaussdb_00055__en-us_topic_0000001839143185_text2097191363317"><strong>Remove Protection</strong></span>.</p>
</td>
</tr>
<tr id="hcs_gaussdb_00055__en-us_topic_0000001839143185_row191077557610"><td class="cellrowborder" valign="top" width="21.32%" headers="mcps1.3.3.1.3.2.4.1.1 "><p id="hcs_gaussdb_00055__en-us_topic_0000001839143185_p136950484237">Activating protection for replication copies</p>
</td>
<td class="cellrowborder" valign="top" width="47.339999999999996%" headers="mcps1.3.3.1.3.2.4.1.2 "><p id="hcs_gaussdb_00055__en-us_topic_0000001839143185_p86648169242"><strong id="hcs_gaussdb_00055__en-us_topic_0000001839143185_b4468151716249">Scenario</strong></p>
<p id="hcs_gaussdb_00055__en-us_topic_0000001839143185_p10694948192314">This operation enables you to activate a disabled protection plan for replication copies. After the protection plan is activated, the system protects replication copies based on the protection plan.</p>
</td>
<td class="cellrowborder" valign="top" width="31.34%" headers="mcps1.3.3.1.3.2.4.1.3 "><p id="hcs_gaussdb_00055__en-us_topic_0000001839143185_p61071551265">In the row of the target resource, choose <strong id="hcs_gaussdb_00055__en-us_topic_0000001839143185_b1676211211059">More</strong> &gt; <span id="hcs_gaussdb_00055__en-us_topic_0000001839143185_text161681522103311"><strong>Activate Protection</strong></span>.</p>
</td>
</tr>
<tr id="hcs_gaussdb_00055__en-us_topic_0000001839143185_row811414581465"><td class="cellrowborder" valign="top" width="21.32%" headers="mcps1.3.3.1.3.2.4.1.1 "><p id="hcs_gaussdb_00055__en-us_topic_0000001839143185_p71076551464">Disabling protection for replication copies</p>
</td>
<td class="cellrowborder" valign="top" width="47.339999999999996%" headers="mcps1.3.3.1.3.2.4.1.2 "><p id="hcs_gaussdb_00055__en-us_topic_0000001839143185_p842845116222"><strong id="hcs_gaussdb_00055__en-us_topic_0000001839143185_b1797565114222">Scenario</strong></p>
<p id="hcs_gaussdb_00055__en-us_topic_0000001839143185_p10107055766">You can disable the protection plan if the replication copies no longer require periodic protection. After the protection plan is disabled, the system does not execute automatic protection jobs of these replication copies.</p>
</td>
<td class="cellrowborder" valign="top" width="31.34%" headers="mcps1.3.3.1.3.2.4.1.3 "><p id="hcs_gaussdb_00055__en-us_topic_0000001839143185_p1111475810613">In the row of the target resource, choose <strong id="hcs_gaussdb_00055__en-us_topic_0000001839143185_b15650334751">More</strong> &gt; <span id="hcs_gaussdb_00055__en-us_topic_0000001839143185_text392918335339"><strong>Disable Protection</strong></span>.</p>
</td>
</tr>
<tr id="hcs_gaussdb_00055__en-us_topic_0000001839143185_row153332773"><td class="cellrowborder" valign="top" width="21.32%" headers="mcps1.3.3.1.3.2.4.1.1 "><p id="hcs_gaussdb_00055__en-us_topic_0000001839143185_p43312218714">Performing manual replication for a replication copy</p>
</td>
<td class="cellrowborder" valign="top" width="47.339999999999996%" headers="mcps1.3.3.1.3.2.4.1.2 "><p id="hcs_gaussdb_00055__en-us_topic_0000001839143185_p9940133218250"><strong id="hcs_gaussdb_00055__en-us_topic_0000001839143185_b109408327259">Scenario</strong></p>
<p id="hcs_gaussdb_00055__en-us_topic_0000001839143185_p139401328256">This operation enables you to replicate a replication copy immediately.</p>
<p id="hcs_gaussdb_00055__en-us_topic_0000001839143185_p6763172119279"><strong id="hcs_gaussdb_00055__en-us_topic_0000001839143185_b17763721122714">Note</strong></p>
<p id="hcs_gaussdb_00055__en-us_topic_0000001839143185_p781862319279">Before performing this operation, ensure that an SLA based on replication copies has been created and used to create protection for the corresponding resource.</p>
</td>
<td class="cellrowborder" valign="top" width="31.34%" headers="mcps1.3.3.1.3.2.4.1.3 "><p id="hcs_gaussdb_00055__en-us_topic_0000001839143185_p1534321671">In the row of the target resource, choose <strong id="hcs_gaussdb_00055__en-us_topic_0000001839143185_b78005371758">More</strong> &gt; <span id="hcs_gaussdb_00055__en-us_topic_0000001839143185_text316874418335"><strong>Manually Replicate</strong></span>.</p>
</td>
</tr>
<tr id="hcs_gaussdb_00055__en-us_topic_0000001839143185_row102432183107"><td class="cellrowborder" valign="top" width="21.32%" headers="mcps1.3.3.1.3.2.4.1.1 "><div class="p" id="hcs_gaussdb_00055__en-us_topic_0000001839143185_p162441918181014">Modifying the owner<div class="note" id="hcs_gaussdb_00055__en-us_topic_0000001839143185_note6966434109"><span class="notetitle"> NOTE: </span><div class="notebody"><p id="hcs_gaussdb_00055__en-us_topic_0000001839143185_en-us_topic_0000001792344090_p1816719214566">Only 1.6.0 and later versions support this function.</p>
</div></div>
</div>
</td>
<td class="cellrowborder" valign="top" width="47.339999999999996%" headers="mcps1.3.3.1.3.2.4.1.2 "><p id="hcs_gaussdb_00055__en-us_topic_0000001839143185_p0746184915106"><strong id="hcs_gaussdb_00055__en-us_topic_0000001839143185_b1134192164018">Scenario</strong></p>
<p id="hcs_gaussdb_00055__en-us_topic_0000001839143185_p187461749141013">This operation enables you to modify the owner of a resource and all its copies and switch the quota occupied by the copies to a new owner.</p>
<div class="p" id="hcs_gaussdb_00055__en-us_topic_0000001839143185_p3746164921019"><strong id="hcs_gaussdb_00055__en-us_topic_0000001839143185_b171371017184014">Note</strong><ul id="hcs_gaussdb_00055__en-us_topic_0000001839143185_ul1839631171411"><li id="hcs_gaussdb_00055__en-us_topic_0000001839143185_li5396121118149">Only the system administrator has the permission to modify the owner.</li><li id="hcs_gaussdb_00055__en-us_topic_0000001839143185_li2895912181415">The owner can be changed only to a user of the <strong id="hcs_gaussdb_00055__en-us_topic_0000001839143185_b5815111610301">Data Protection Administrator</strong> or custom role.</li><li id="hcs_gaussdb_00055__en-us_topic_0000001839143185_li99441412172">After the owner of a resource is modified, all information about the resource will not be displayed under the original owner.</li></ul>
</div>
</td>
<td class="cellrowborder" valign="top" width="31.34%" headers="mcps1.3.3.1.3.2.4.1.3 "><p id="hcs_gaussdb_00055__en-us_topic_0000001839143185_p9971641161418">In the row of the target resource, choose <strong id="hcs_gaussdb_00055__en-us_topic_0000001839143185_b13543171104419">More</strong> &gt; <strong id="hcs_gaussdb_00055__en-us_topic_0000001839143185_b14494164121817">Modify Owner</strong>.</p>
</td>
</tr>
</tbody>
</table>
</div>
</li></ul>
<ul><li>Click <span class="uicontrol"><b>Copy</b></span> to perform operations by copy.<div class="p"><a href="#hcs_gaussdb_00055__table51069596392">Table 2</a> describes the related operations.
<div class="tablenoborder"><a name="hcs_gaussdb_00055__table51069596392"></a><a name="table51069596392"></a><table cellpadding="4" cellspacing="0" summary="" id="hcs_gaussdb_00055__table51069596392" frame="border" border="1" rules="all"><caption><b>Table 2 </b>Operations related to Huawei Cloud Stack GaussDB copies</caption><colgroup><col style="width:21.32%"><col style="width:47.339999999999996%"><col style="width:31.34%"></colgroup><thead align="left"><tr><th align="left" class="cellrowborder" valign="top" width="21.32%" id="mcps1.3.4.1.2.2.2.4.1.1"><p>Operation</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="47.339999999999996%" id="mcps1.3.4.1.2.2.2.4.1.2"><p>Description</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="31.34%" id="mcps1.3.4.1.2.2.2.4.1.3"><p>Navigation Path</p>
</th>
</tr>
</thead>
<tbody><tr><td class="cellrowborder" valign="top" width="21.32%" headers="mcps1.3.4.1.2.2.2.4.1.1 "><div class="p">Performing manual archiving<div class="note" id="hcs_gaussdb_00055__en-us_topic_0000001839143185_note1993101364115"><span class="notetitle"> NOTE: </span><div class="notebody"><p id="hcs_gaussdb_00055__en-us_topic_0000001839143185_en-us_topic_0000001792344090_p1816719214566_1">Only 1.6.0 and later versions support this function.</p>
</div></div>
</div>
</td>
<td class="cellrowborder" valign="top" width="47.339999999999996%" headers="mcps1.3.4.1.2.2.2.4.1.2 "><p><strong>Scenario</strong></p>
<p>This operation enables you to manually archive copies to the archive storage.</p>
<p><strong>Note</strong></p>
<p>Only full backup copies as well as their replication copies and cascaded replication copies can be manually archived.</p>
</td>
<td class="cellrowborder" valign="top" width="31.34%" headers="mcps1.3.4.1.2.2.2.4.1.3 "><p>In the row of the target copy, choose <span class="uicontrol" id="hcs_gaussdb_00055__en-us_topic_0000001839143185_uicontrol5694115314197"><b><span id="hcs_gaussdb_00055__en-us_topic_0000001839143185_text3694165361915"><strong>More</strong></span> &gt; Manual Archive</b></span>.</p>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="21.32%" headers="mcps1.3.4.1.2.2.2.4.1.1 "><p>Modifying a copy retention policy</p>
</td>
<td class="cellrowborder" valign="top" width="47.339999999999996%" headers="mcps1.3.4.1.2.2.2.4.1.2 "><p><strong>Scenario</strong></p>
<p>This operation enables you to modify the retention period of a copy.</p>
<p><strong>Note</strong></p>
<p>The modified copy retention period is calculated from the current time.</p>
</td>
<td class="cellrowborder" valign="top" width="31.34%" headers="mcps1.3.4.1.2.2.2.4.1.3 "><p>In the row of the target copy, choose <span class="uicontrol"><b><span><strong>More</strong></span> &gt; <span><strong>Modify Retention Policy</strong></span></b></span>.</p>
<p>You can set the retention period to be permanent or to <em>XX</em> days, <em>XX</em> weeks, <em>XX</em> months, or <em>XX</em> years.</p>
<p></p>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="21.32%" headers="mcps1.3.4.1.2.2.2.4.1.1 "><div class="p">Performing WORM settings<div class="note" id="hcs_gaussdb_00055__en-us_topic_0000001839143185_note15696816958"><span class="notetitle"> NOTE: </span><div class="notebody"><p id="hcs_gaussdb_00055__en-us_topic_0000001839143185_en-us_topic_0000001792344090_p1816719214566_2">Only 1.6.0 and later versions support this function.</p>
</div></div>
</div>
</td>
<td class="cellrowborder" valign="top" width="47.339999999999996%" headers="mcps1.3.4.1.2.2.2.4.1.2 "><p><strong>Scenario</strong></p>
<p>This operation enables you to set a copy as a WORM copy or change the WORM validity period.</p>
<div class="p"><strong id="hcs_gaussdb_00055__en-us_topic_0000001839143185_b1321210121610">Note</strong><ul id="hcs_gaussdb_00055__en-us_topic_0000001839143185_ul731014177115"><li id="hcs_gaussdb_00055__en-us_topic_0000001839143185_en-us_topic_0000001839143189_li103014415565">WORM copies cannot be deleted or their validity periods cannot be shortened.</li><li id="hcs_gaussdb_00055__en-us_topic_0000001839143185_en-us_topic_0000001839143189_li9171132315916">The custom WORM validity period cannot be longer than the copy retention period.</li><li id="hcs_gaussdb_00055__en-us_topic_0000001839143185_en-us_topic_0000001839143189_li976612319580">A WORM copy cannot be changed to a non-WORM copy within its validity period.</li></ul>
</div>
</td>
<td class="cellrowborder" valign="top" width="31.34%" headers="mcps1.3.4.1.2.2.2.4.1.3 "><p>In the row of the target copy, choose <strong id="hcs_gaussdb_00055__en-us_topic_0000001839143185_b126021141612">More</strong> &gt; <strong id="hcs_gaussdb_00055__en-us_topic_0000001839143185_b15601112167">WORM Setting</strong>.</p>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="21.32%" headers="mcps1.3.4.1.2.2.2.4.1.1 "><p>Deleting a copy</p>
<p></p>
</td>
<td class="cellrowborder" valign="top" width="47.339999999999996%" headers="mcps1.3.4.1.2.2.2.4.1.2 "><p><strong>Scenario</strong></p>
<p>If a copy is not required or does not work, you can delete it to free up storage space.</p>
<p><strong>Note</strong></p>
<ul><li>Before deleting a copy, ensure that the copy is no longer used for restoration.</li><li>Only copies in the <span class="uicontrol"><b>Invalid</b></span> status can be deleted.</li><li>If a resource has multiple copies, the last copy cannot be deleted.</li><li>If a resource has multiple copies and only one full replication copy, the full replication copy cannot be deleted.</li><li>Log copies cannot be deleted. You can delete the latest full copy before the log copy is generated for associated deletion.</li></ul>
</td>
<td class="cellrowborder" valign="top" width="31.34%" headers="mcps1.3.4.1.2.2.2.4.1.3 "><div class="p">In the row of the target copy, choose <strong id="hcs_gaussdb_00055__en-us_topic_0000001839143185_b1834211431759">More</strong> &gt; <span id="hcs_gaussdb_00055__en-us_topic_0000001839143185_text1659218118342"><strong>Delete</strong></span>. Alternatively, select the copies to be deleted and click <span id="hcs_gaussdb_00055__en-us_topic_0000001839143185_text7770103919243"><strong>Delete</strong></span> above the table.<div class="note" id="hcs_gaussdb_00055__en-us_topic_0000001839143185_note172661250175414"><span class="notetitle"> NOTE: </span><div class="notebody"><p id="hcs_gaussdb_00055__en-us_topic_0000001839143185_p15266165085416">For 1.6.0 and later versions, to forcibly delete the copy data in the database after copy deletion fails, select <strong id="hcs_gaussdb_00055__en-us_topic_0000001839143185_b1328431132218">Forcibly delete the copy data upon deletion failure</strong> in the displayed dialog box.</p>
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<tr><td class="cellrowborder" valign="top" width="21.32%" headers="mcps1.3.4.1.2.2.2.4.1.1 "><p>Manually creating an index</p>
</td>
<td class="cellrowborder" valign="top" width="47.339999999999996%" headers="mcps1.3.4.1.2.2.2.4.1.2 "><div class="p"><strong>Scenario</strong><ul><li>For 1.5.0: If you need to search for files or directories in a copy and <span class="uicontrol"><b><span><strong>Automatic Indexing</strong></span></b></span> is disabled for an SLA, you can manually create an index.</li><li>For 1.6.0 and later versions: If you want to search for files or directories in a copy and <span class="uicontrol"><b>Auto Indexing of Backup Copies</b></span> is disabled during protection creation, you can manually create an index.</li></ul>
</div>
<div class="p"><strong>Note</strong><ul><li>Reverse replication copies and cascaded replication copies do not support index creation.</li><li>Copies archived to tapes do not support index creation.</li></ul>
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<td class="cellrowborder" valign="top" width="31.34%" headers="mcps1.3.4.1.2.2.2.4.1.3 "><p>In the row of the target copy, choose <span class="uicontrol"><b><span><strong>More</strong></span> &gt; <span><strong>Manually Create Index</strong></span></b></span>.</p>
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<tr><td class="cellrowborder" valign="top" width="21.32%" headers="mcps1.3.4.1.2.2.2.4.1.1 "><p>Performing reverse replication or cascaded replication on replication copies</p>
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<td class="cellrowborder" valign="top" width="47.339999999999996%" headers="mcps1.3.4.1.2.2.2.4.1.2 "><p><strong>Scenario</strong></p>
<p>This operation enabled you to replicate a replication copy to the source end for data restoration or replicate a replication copy to another cluster for remote DR.</p>
<p><strong>Note</strong></p>
<p>Before performing reverse replication, delete the backup copies corresponding to the replication copies from the source end. Otherwise, the replication will fail.</p>
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<td class="cellrowborder" valign="top" width="31.34%" headers="mcps1.3.4.1.2.2.2.4.1.3 "><div class="p">In the row of the target replication copy, choose <strong id="hcs_gaussdb_00055__en-us_topic_0000001839143185_b27822552514">More</strong> &gt; <span id="hcs_gaussdb_00055__en-us_topic_0000001839143185_text191285272345"><strong>Replicate</strong></span>. Configure copy replication parameters.<ol id="hcs_gaussdb_00055__en-us_topic_0000001839143185_ol15113142311175"><li id="hcs_gaussdb_00055__en-us_topic_0000001839143185_li0113202310179">Select <span class="uicontrol" id="hcs_gaussdb_00055__en-us_topic_0000001839143185_uicontrol1611634014176"><b>Replication Target Cluster</b></span>.<ul id="hcs_gaussdb_00055__en-us_topic_0000001839143185_ul2991182216"><li id="hcs_gaussdb_00055__en-us_topic_0000001839143185_li3998812219">If <span class="uicontrol" id="hcs_gaussdb_00055__en-us_topic_0000001839143185_uicontrol630794164212"><b>Replication Target Cluster</b></span> is the source cluster, reverse replication is performed.</li><li id="hcs_gaussdb_00055__en-us_topic_0000001839143185_li1419217379216">If <span class="uicontrol" id="hcs_gaussdb_00055__en-us_topic_0000001839143185_uicontrol118058437428"><b>Replication Target Cluster</b></span> is another cluster, cascaded replication is performed.</li></ul>
</li><li id="hcs_gaussdb_00055__en-us_topic_0000001839143185_li8112182510382">For 1.6.0 and later versions, select <strong id="hcs_gaussdb_00055__en-us_topic_0000001839143185_b643413469142">Replication Target User</strong>.</li><li id="hcs_gaussdb_00055__en-us_topic_0000001839143185_li83719248152">For 1.6.0 and later versions, enter the password of the replication target user and click <strong id="hcs_gaussdb_00055__en-us_topic_0000001839143185_b666072914152">Authenticate</strong>.</li><li id="hcs_gaussdb_00055__en-us_topic_0000001839143185_li222198163919">Set <strong id="hcs_gaussdb_00055__en-us_topic_0000001839143185_b8526141221619">Specify Target Location</strong> for replication.</li><li id="hcs_gaussdb_00055__en-us_topic_0000001839143185_li1564916443171">Set the copy retention period.</li><li id="hcs_gaussdb_00055__en-us_topic_0000001839143185_li6696135771714">Enable or disable deduplication and compression.<p id="hcs_gaussdb_00055__en-us_topic_0000001839143185_p325810594214"><a name="hcs_gaussdb_00055__en-us_topic_0000001839143185_li6696135771714"></a><a name="en-us_topic_0000001839143185_li6696135771714"></a>You are advised to enable these functions to improve replication efficiency.</p>
</li><li id="hcs_gaussdb_00055__en-us_topic_0000001839143185_li3458142216186">Enable or disable the job failure alarm function.</li></ol>
</div>
</td>
</tr>
<tr><td class="cellrowborder" colspan="3" valign="top" headers="mcps1.3.4.1.2.2.2.4.1.1 mcps1.3.4.1.2.2.2.4.1.2 mcps1.3.4.1.2.2.2.4.1.3 "><p>Note: The configuration of the copy restoration is similar to that in <a href="hcs_gaussdb_00045.html">Restoring Huawei Cloud Stack GaussDB Instances</a> and is not described in this section.</p>
</td>
</tr>
</tbody>
</table>
</div>
</div>
</li></ul>
</div>
<div>
<div class="familylinks">
<div class="parentlink"><strong>Parent topic:</strong> <a href="hcs_gaussdb_00053.html">Copies</a></div>
</div>
</div>

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